From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 863DFC433EF for ; Wed, 20 Jul 2022 13:20:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mzWWw2V9NCQP8c4wdHA9g3KD5b5HzQfA/BDmsj95t04=; b=wBGMmwibtMuN2M I4QbTEPdc1RVJlcnS2Pgt/VTqKz46gNna+mFVq2hBvVoTQy8UP5nwiwY6MzxLyUuK4HhOSR72YzUZ iBAmpW4x/bOlMaOTudRiMidhK/cUplpfyOUd9pQNoTdjQVZllHDYq1TeG3FCI1a51DwTf5urzfSip D2l1KesAyprJpGidGDgFc7GP5oFUmEPZU5dV6yxrwAGpWz3cEbqpEnICp+DiOKBpSIVPOwH8tPAmN tn93D/y0ek1nJeZCFD//Ho5EuKQB60FmCKu4Hapqi/Ef7Zb0jfI3VOwiQVBwJDcrh5J1/mZ+qFU3O wL1AUNFSKIt1e/zfXm3g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oE9cv-005v4s-FS; Wed, 20 Jul 2022 13:20:33 +0000 Received: from mail-pg1-x532.google.com ([2607:f8b0:4864:20::532]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oE9cj-005uuC-UA; Wed, 20 Jul 2022 13:20:23 +0000 Received: by mail-pg1-x532.google.com with SMTP id f11so16368597pgj.7; Wed, 20 Jul 2022 06:20:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=CAvGAUGfD4yEriU2e+6H/aIlJES74/b5I+im3RNoGrs=; b=p3wXeUZfzksHJTjRN3TbKh0YY/y9vXPhBOz1E9Qx+OIZAdzTNAophS2Llu2IX0tbhc OZyJroI3k6DSfhl2e40+zNH+BrwZGcei+Yej7z/I+s+WclFoYh/tZsOLs+pVRXoayr3U PIS3qOeixSitSMIYqzT6F7061+ThLmpF5rl7X1xZ79PqFLljKFI1AkLvUCSnQKV8MJ6z J2ePRdoxNIiT+F7Xx/+545n5YoTnigWFR36AgknMvGpPAcAjA+ZpcFbnICQp/VcaxMkN MHKhfELNUfrSrwbvQggMQf/TVwmKcHyfBRn4bjuFPe9DkvKYjuToMdUAmIkuACQxYJkW /OLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=CAvGAUGfD4yEriU2e+6H/aIlJES74/b5I+im3RNoGrs=; b=BMxVh0YH4ijxvIq7w3tM4fry3a8bF+ND36c3ZM+aIxZetrGPIqhIjzekWBq651ajI/ fyh+uikOsMDuoMNuuhED9IohLTNkd4yXYla/4/ebDBPwBDJNSWw9lsH9b5CAUuMwb+qr GsnXBTU7sVH4Dt1GHWyg6FF9LR0b/dMQLE28hSIhble0ZK/Ze01NgHS05DW+/iSKzPgu lKaGU1EcJtwjGDDRaRVlKeoeEXwHWgmanva6SdvPnOlDW5FHa3NeDdon1u+su2nCxuNa bzq11/+141CKRnUkwHH19TgHO4MU5wq0FqLu4/PjtTKQnkwpZAG2K56osGGwNvQUIykr 4/FA== X-Gm-Message-State: AJIora8JpxDq5WBcbZO/WolhZCtOvmZD1e7XuqVCZlWGD5vFLwlwWqkI 20bwgzCeLbijtBl9sfjfG+I= X-Google-Smtp-Source: AGRyM1tdmS3W6AEHPZVvhwfu9X7/ePXNVtvfP36y43KWJu4Jr7+8pY5vWvOgEhR3qjIkgSvWNtwz9Q== X-Received: by 2002:a63:f143:0:b0:41a:5c8a:915c with SMTP id o3-20020a63f143000000b0041a5c8a915cmr4398046pgk.369.1658323218892; Wed, 20 Jul 2022 06:20:18 -0700 (PDT) Received: from localhost ([2409:10:24a0:4700:e8ad:216a:2a9d:6d0c]) by smtp.gmail.com with ESMTPSA id p29-20020a635b1d000000b0041a67913d5bsm1267044pgb.71.2022.07.20.06.20.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jul 2022 06:20:18 -0700 (PDT) From: Stafford Horne To: LKML Cc: Arnd Bergmann , Stafford Horne , Pierre Morel , Geert Uytterhoeven , Catalin Marinas , Will Deacon , Guo Ren , Paul Walmsley , Palmer Dabbelt , Albert Ou , Richard Weinberger , Anton Ivanov , Johannes Berg , Bjorn Helgaas , linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, linux-um@lists.infradead.org, linux-pci@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH v4 3/3] asm-generic: Add new pci.h and use it Date: Wed, 20 Jul 2022 22:19:34 +0900 Message-Id: <20220720131934.373932-4-shorne@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220720131934.373932-1-shorne@gmail.com> References: <20220720131934.373932-1-shorne@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220720_062021_996879_107E7043 X-CRM114-Status: GOOD ( 18.21 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The asm/pci.h used for many newer architectures share similar definitions. Move the common parts to asm-generic/pci.h to allow for sharing code. One thing to note: - ARCH_GENERIC_PCI_MMAP_RESOURCE, csky does not define this so we undefine it after including asm-generic/pci.h. Why doesn't csky define it? Suggested-by: Arnd Bergmann Link: https://lore.kernel.org/lkml/CAK8P3a0JmPeczfmMBE__vn=Jbvf=nkbpVaZCycyv40pZNCJJXQ@mail.gmail.com/ Acked-by: Pierre Morel Acked-by: Geert Uytterhoeven Signed-off-by: Stafford Horne --- Since v3: - Remove notes about pci_get_legacy_ide_irq and isa_dma_bridge_buggy. - Change ifdef around pci_proc_domain to use CONFIG_PCI_DOMAINS to avoid compile failure on User Mode linux. arch/arm64/include/asm/pci.h | 12 ++---------- arch/csky/include/asm/pci.h | 24 ++++-------------------- arch/riscv/include/asm/pci.h | 25 +++---------------------- arch/um/include/asm/pci.h | 24 ++---------------------- include/asm-generic/pci.h | 32 ++++++++++++++++++++++++++++++++ 5 files changed, 43 insertions(+), 74 deletions(-) create mode 100644 include/asm-generic/pci.h diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h index 0aebc3488c32..016eb6b46dc0 100644 --- a/arch/arm64/include/asm/pci.h +++ b/arch/arm64/include/asm/pci.h @@ -9,7 +9,6 @@ #include #define PCIBIOS_MIN_IO 0x1000 -#define PCIBIOS_MIN_MEM 0 /* * Set to 1 if the kernel should re-assign all PCI bus numbers @@ -18,15 +17,8 @@ (pci_has_flag(PCI_REASSIGN_ALL_BUS)) #define arch_can_pci_mmap_wc() 1 -#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 -extern int isa_dma_bridge_buggy; - -#ifdef CONFIG_PCI -static inline int pci_proc_domain(struct pci_bus *bus) -{ - return 1; -} -#endif /* CONFIG_PCI */ +/* Generic PCI */ +#include #endif /* __ASM_PCI_H */ diff --git a/arch/csky/include/asm/pci.h b/arch/csky/include/asm/pci.h index ebc765b1f78b..44866c1ad461 100644 --- a/arch/csky/include/asm/pci.h +++ b/arch/csky/include/asm/pci.h @@ -9,26 +9,10 @@ #include -#define PCIBIOS_MIN_IO 0 -#define PCIBIOS_MIN_MEM 0 +/* Generic PCI */ +#include -/* C-SKY shim does not initialize PCI bus */ -#define pcibios_assign_all_busses() 1 - -extern int isa_dma_bridge_buggy; - -#ifdef CONFIG_PCI -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - /* no legacy IRQ on csky */ - return -ENODEV; -} - -static inline int pci_proc_domain(struct pci_bus *bus) -{ - /* always show the domain in /proc */ - return 1; -} -#endif /* CONFIG_PCI */ +/* csky doesn't use generic pci resource mapping */ +#undef ARCH_GENERIC_PCI_MMAP_RESOURCE #endif /* __ASM_CSKY_PCI_H */ diff --git a/arch/riscv/include/asm/pci.h b/arch/riscv/include/asm/pci.h index 7fd52a30e605..12ce8150cfb0 100644 --- a/arch/riscv/include/asm/pci.h +++ b/arch/riscv/include/asm/pci.h @@ -12,29 +12,7 @@ #include -#define PCIBIOS_MIN_IO 0 -#define PCIBIOS_MIN_MEM 0 - -/* RISC-V shim does not initialize PCI bus */ -#define pcibios_assign_all_busses() 1 - -#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 - -extern int isa_dma_bridge_buggy; - #ifdef CONFIG_PCI -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - /* no legacy IRQ on risc-v */ - return -ENODEV; -} - -static inline int pci_proc_domain(struct pci_bus *bus) -{ - /* always show the domain in /proc */ - return 1; -} - #ifdef CONFIG_NUMA static inline int pcibus_to_node(struct pci_bus *bus) @@ -50,4 +28,7 @@ static inline int pcibus_to_node(struct pci_bus *bus) #endif /* CONFIG_PCI */ +/* Generic PCI */ +#include + #endif /* _ASM_RISCV_PCI_H */ diff --git a/arch/um/include/asm/pci.h b/arch/um/include/asm/pci.h index da13fd5519ef..34fe4921b5fa 100644 --- a/arch/um/include/asm/pci.h +++ b/arch/um/include/asm/pci.h @@ -4,28 +4,8 @@ #include #include -#define PCIBIOS_MIN_IO 0 -#define PCIBIOS_MIN_MEM 0 - -#define pcibios_assign_all_busses() 1 - -extern int isa_dma_bridge_buggy; - -#ifdef CONFIG_PCI -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - /* no legacy IRQs */ - return -ENODEV; -} -#endif - -#ifdef CONFIG_PCI_DOMAINS -static inline int pci_proc_domain(struct pci_bus *bus) -{ - /* always show the domain in /proc */ - return 1; -} -#endif /* CONFIG_PCI */ +/* Generic PCI */ +#include #ifdef CONFIG_PCI_MSI_IRQ_DOMAIN /* diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h new file mode 100644 index 000000000000..3ceb0cb12321 --- /dev/null +++ b/include/asm-generic/pci.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __ASM_GENERIC_PCI_H +#define __ASM_GENERIC_PCI_H + +#include + +#ifndef PCIBIOS_MIN_IO +#define PCIBIOS_MIN_IO 0 +#endif + +#ifndef PCIBIOS_MIN_MEM +#define PCIBIOS_MIN_MEM 0 +#endif + +#ifndef pcibios_assign_all_busses +/* For bootloaders that do not initialize the PCI bus */ +#define pcibios_assign_all_busses() 1 +#endif + +/* Enable generic resource mapping code in drivers/pci/ */ +#define ARCH_GENERIC_PCI_MMAP_RESOURCE + +#ifdef CONFIG_PCI_DOMAINS +static inline int pci_proc_domain(struct pci_bus *bus) +{ + /* always show the domain in /proc */ + return 1; +} +#endif /* CONFIG_PCI_DOMAINS */ + +#endif /* __ASM_GENERIC_PCI_H */ -- 2.36.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv